Código PHP:
if ($_FILES["file"]["error"] > 0)
{
echo "Return Code: " . $_FILES["file"]["error"] . "<br />";
}
else
{
echo "Upload: " . $_FILES["file"]["name"] . "<br />";
//echo "Type: " . $_FILES["file"]["type"] . "<br />";
//echo "Size: " . ($_FILES["file"]["size"] / 1024) . " Kb<br />";
//echo "Temp file: " . $_FILES["file"]["tmp_name"] . "<br />";
if (file_exists("subir/" . $_FILES["file"]["name"]))
{
echo $_FILES["file"]["name"] . " already exists. ";
}
else
{
move_uploaded_file($_FILES["file"]["tmp_name"],
"archivos/" . $_FILES["file"]["name"]);
echo "Stored in: " . "rapipagos/" . $_FILES["file"]["name"];
}
}
con este codigo yo subo archivos. fijate si te sale algun error y mostralo